Ingredients
Equipment
Method
- First, zest and juice your lemons and set them aside for later use.
Prepare Lemon Curd
- Add about 2 inches of water to the bottom of a small saucepan. Bring it to a gentle simmer over medium heat.
- In a heat-proof mixing bowl, combine 4 egg yolks, 2/3 cup granulated sugar, 1 tablespoon lemon zest, 1/3 cup lemon juice, and a pinch of salt. Whisk these ingredients together until they are well combined.
- Place this bowl directly over the simmering water in your saucepan, ensuring the bottom of the bowl does not touch the water. Reduce the heat to medium-low. Cook the mixture, whisking constantly, for about 7-10 minutes. The curd will gradually thicken to a consistency similar to gravy.
- Once thickened, remove the bowl from the heat. Stir in the 6 tablespoons of chopped unsalted butter until it melts and fully incorporates.
Cool Lemon Curd
- Pour the finished lemon curd into a clean bowl. Immediately place a piece of plastic wrap directly on the surface of the curd. This prevents a skin from forming as it cools.
- Refrigerate the lemon curd while you prepare the remaining components of your tiramisu. Ensure it is completely chilled before assembly.
Make Lemon Syrup
- In a separate saucepan, combine ¾ cup lemon juice, 1 cup water, and ½ cup granulated sugar. Bring this mixture to a boil over medium-high heat, stirring continuously until the sugar completely dissolves.
- Allow the syrup to boil gently for 5 minutes. Remove the saucepan from the heat. Transfer the hot lemon syrup to a bowl and let it cool completely to room temperature. You can place it in the refrigerator to speed up the cooling process.
- Once cooled, stir in the ¼ cup of limoncello if you are using it.
Whip Mascarpone Filling
- In a large mixing bowl, combine the softened mascarpone cheese with 1 tablespoon of lemon zest. Using an electric mixer, gradually incorporate the 1 ½ cups of heavy whipping cream.
- Beat the mixture on medium-high speed just until medium to stiff peaks form. Be careful not to over-mix, as mascarpone can curdle if beaten for too long. The mixture should be light, fluffy, and hold its shape.
Assemble Tiramisu Layers
- Take your package of ladyfingers. Briefly submerge each ladyfinger, one at a time, into the cooled lemon syrup. Do not soak them; a quick dip is all you need to moisten them without making them soggy.
- Arrange the dipped ladyfingers in a single layer to cover the bottom of your 8x8 inch baking dish.
- Next, spread half of the whipped mascarpone mixture evenly over the ladyfingers. Give your cooled lemon curd a good stir, then spoon it evenly over the mascarpone layer.
- Repeat the layering process: add a second layer of quickly dipped ladyfingers, followed by the remaining whipped mascarpone mixture. You can smooth the top with a spatula or use a piping bag for a more decorative finish.
- For an optional garnish, sprinkle grated white chocolate and/or extra lemon zest or thin lemon slices over the top.
Chill Thoroughly
- Cover the assembled tiramisu tightly with plastic wrap. Refrigerate it for at least 2 hours, allowing the flavors to meld and the dessert to set.
- For the very best taste and texture, chilling overnight is highly recommended.
Nutrition
Notes
You can easily adapt these lemon tiramisu ingredients to fit your needs. To save time, use good quality store-bought lemon curd instead of making it from scratch. For the best texture, always choose traditional Italian Savoiardi ladyfingers; they absorb the syrup perfectly without becoming too soft. Remember, the limoncello is entirely optional; feel free to omit it for a family-friendly version. Always use freshly squeezed lemon juice for the brightest, most authentic flavor. Prevent Soggy Ladyfingers: Dip each ladyfinger very quickly into the lemon syrup. A swift dunk is enough to moisten them without over-saturating. Achieve Thick Lemon Curd: Whisk constantly while cooking the lemon curd over simmering water. This prevents scrambling the eggs and ensures a silky, thick consistency. Avoid Over-whipping Mascarpone: Whip the mascarpone and cream mixture only until medium-stiff peaks form. Over-whipping can cause the mascarpone to separate and become grainy. Flavor Infusion is Key: For the richest and most complex flavors, allow your lemon tiramisu to chill in the refrigerator overnight. This gives all the layers time to meld beautifully. Presentation Perfect: For a more elegant finish, transfer the whipped mascarpone to a piping bag with a star tip before piping the final layer. Nutrition information is estimated based on common ingredients and serving sizes and may vary.